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Old 12-07-2006, 12:47 PM   #1
goixiz
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Default close to open loop

can someone please educate me on the table format and what all those numbers in each column mean and how to optimize it

thanks in advance
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Old 12-07-2006, 02:42 PM   #2
Gethin
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eh?...

elaborate on your question please
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Old 12-07-2006, 03:15 PM   #3
goixiz
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Under the closed loop tree - closed loop delays (enginuity) - ROM
16 columns with group of 4s
what does those numbers change / mean
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Old 12-07-2006, 05:38 PM   #4
Master2192
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They are some value the ECU uses for the delay calculation. I don't think anyone knows exactly what they mean. You'd accomplish alot more by changing the closed loop rpm exit and enter AND the closed loop throttle percentage.

If you do adjust those numbers, adjust them all by the same percentage.
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Old 12-07-2006, 05:40 PM   #5
Gethin
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the time delay taken to transition from closed loop to open loop at that RPM, in miliseconds I believe.
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Old 12-08-2006, 01:47 PM   #6
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There are several theories as to what those numbers mean. Generally, it has been reported that the numbers dictate when the ECU transitions between closed and open loop. It is also believed that they control the transition in the other direction. This seems to be the heart of the infamous closed/open loop delay issue that +04 WRXs have. Most people have lowered those values to 10% of what the stock ROM has. This seems to improve the transition delay. Some also suggested that zeroing out the last column in each section (1,2,3,4) also helps things a lot. You may say, hell, I'll just zero out all cells!!! Not so fast my friend!!! Doing so will most likely effect your MPGs and I heard that it may make the transition even slower. My theory is that the ECU might not like all 0s and could enter a safe mode which will 'feel' even worse.
I know Cobb uses a single value across most cells and 0s for a few of them. I am actually experimenting with this table myself right now so stay tuned for results.
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Old 12-08-2006, 02:21 PM   #7
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>>--^^ i will be keeping my eye out
thanks zig
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Old 12-08-2006, 02:34 PM   #8
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Check your PM....
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Old 12-24-2006, 03:55 AM   #9
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ziggy any more info on this? I have an 04 and this is something that I am really trying to study about. I have looked at a couple roms and they all reduced by 10% like you said here is a pic of them

http://forcedinductionlv.com/attachm...tachmentid=533
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Old 12-29-2006, 09:22 PM   #10
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any ideas ziggy?
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